Keen sour orange

Citrus aurantium L.

CRC 2624
PI 539163


Received as seed from a source in Bonita, CA, 1936.


Parents unknown. Original source was root sprouts from under a Lisbon lemon tree planted in 1887.

Rootstocks of accession

Carrizo citrange, C-35 citrange

Season of ripeness at Riverside

January to March

Notes and observations

2/24/1988, EMN: This fruit is a typical sour orange.

2/11/2008, OJB, TS & DK: Looks like Seville; juicy; moderate seeds; flavor decent, but not great.


Not commercially available in California.

USDA Germplasm Resources Information Network page for Keen sour orange



Keen sour orange 01
Keen sour orange 03
Keen sour orange 02
Keen sour orange 001
Photos by David Karp, CVC, 2/11/2008
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